do these sentence I created sound natural?
if not, could you correct them please?

1. His tedious speech seemed to be endless, but suddenly the break was announced, and Jennifer and I took a chance to flet.

2. Please, confiscate his gun, lest somebody could be hurt.

3. My doubts not go to Hong Kong were keep diminishing as I was looking on photos of the city.

Question

do these sentence I created sound natural?
if not, could you correct them please?

1. His tedious speech seemed to be endless, but suddenly the break was announced, and Jennifer and I took a chance to flet.

2.  Please, confiscate his gun, lest somebody could be hurt.

3. My doubts not go to Hong Kong were keep diminishing as I was looking on photos of the city.

Answer

Do these sentences I created sound natural?

If not, would you correct them please?

1. His tedious speech seemed to be endless, but suddenly the break was announced, and Jennifer and I took the chance to leave.

2. Please, take away his gun, before somebody gets hurt.

3. My doubts about going to Hong Kong diminished as I looked at photos of the city.